US904367A - Relay for telegraphs. - Google Patents

Description

J. SCOTLAND.

RELAY FOR TELEGRAPHS. APPLICATION IILED JULY 10, 1907.

904,367. Patented Nov. 17, 1908.

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ATTORNEYS J. SCOTLAND. RELAY FOR TELEGRAPHS. APPLICATION FILED JULY 10, 1907.

Patented Nov. 17, 1908.

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WITNESSES A TTOENEYS UNITED STATES PATENT OFFICE.

JAMES SCOTLAND, 0F HEARTS CONTENT, NEWFOUNDLAND.

RELAY FOR TELEGRAPHS.

Application filed July 10, 1907.

I To all whom it may concern:

Be it known that I, JAMES Scormxn, a subject of the King of Great Britain, and a resident of Hearts Content, Newfoundland, have invented a new and Improved Relay for Telegraphs, of which the following is a full, clear, and exact description.

My invention relates to the art of telegraphy and has for its object to provide a relay which is more sensitive than those heretofore known.

A further object is to so construct the relay that there will be a greater and a more rapid demagnetization when the circuit on the main line is broken.

Another object is to construct the several members and so assemble them that there will be a greater margin to the rise and fall of potential of the magnet when the circuit on the main line is made and broken respectively.

A further object of the invention is to assemble the members so that the lines of magnetic force will be so disposed that they will be utilized to the greatest extent to produce the result desired.

A still further object is to provide a relay which issimple in construction, economical to manufacture and one which will take up very little space.

In this specification I will describe the construction shown in the accompanying drawings but I do not limit myself thereto,

as I consider myself entitled to all forms and embodiments of the invention which may be held to fall within the scope of the appended claims.

In the drawings similar characters of reference refer to similar parts in all the tigures, in which Figure 1 is a plan view of the invention; Fig; 2 is a sectional side elevation of the same; Fig. 3 is a section on line 3 3 of 'Fig. 2; Fig. t is a section on line 4l of Fig. 2; and Fig. 5 isa sectional side eleva tion of a modified means of adjusting the screw which supports the electro-magnet.

Referring to the drawings, it will be seen that the several members and parts are supported on a base 1, and that there are two standards 2 and 3, respectively, a frame 4, and a plate 15 which supports the several parts. The cylinder 5 is made of soft iron and serves as an armor for the electro-magnet. Thecylinder 5 has a head 16 atone end, said head having a small opening 17,

Specification of Letters Patent.

Patented Nov. 1'7, 1908.

Serial No. 383,079.

through which is disposed a screw 8 which supports the core 7 of the electroanagnet. Another head 18, of the cylinder has an opening therein which is larger than the core of the electro-magnet, and the space between the said head 18 and the core 7 and the electro magnet, and between the head 16 and the electro-magnet, is occupied by a nonconducting material 11.

The wiring of the elcctro magnet is represented by the character 6 and this wifing may be done in any of the improved methods. The soft iron core 7 of the electromagnet around which the wire is wound. is disposed within the cylinder 5 and serves as the armor, but it is not in electrical contact therewith, by reason of the non-conducting mica or other non-conducting material 11, at the ends of the cylinder between the heads thereof and the core. The core 7 and the armor 7 have each a radial slot 19, the said slot in the core extending to the center thereof. These slots assist in the rapid demagnetization when the main circuit is broken. The core 7 is supported by the nonconducting screw 8, which passes through the opening in the end of the armor and is mounted in a bearing on the standard 3. The screw 8 is adjustable in the said bearing longitudinally, and is held in predetermined positions by a nut 9, in connection with a spring 10, said spring being mounted on the screw between the bearing and the head 16; or the core 7 may be adjusted in the bearing of the standard, as shown in the modification, Fig. In this modification, the screw has a flange 20, which presses against the head 16, and the screw is held in position in the bearing by two nuts 9 which turn in opposite directions respectively. The cylinder 5 which serves an armor is supported on the frame I which frame extends above the armor as shown at 12, and has an arm 13 with a depending flange 1st. In the flange 14 and in the main member of the frame l, are stop contact points 21 and 22 respectively. These points are adjustable in the said frame, and the shanks of these points have screwthreads which emnesh with threads in 'the frame and the ends of these shanks have milled heads 23, by which they may 'be turned to and from. each other. On these shanks are mounted nuts 21, which screw against the frame and assist in the close adjustment of the stop contact points 21 and 22. A contact arm 25 is supported by'two contact point 22.

flexible upright pieces of thin metal 26, and these pieces are secured in the brass 'base plate 15. The contact arm 25, has a contact point 27, which registers with the front stop This contact arm carries an armature 28 which .registers with the core 7 of the electro-magnet. A sprin 29 is pro vided, which is secured at one end to the contact arm 25 and at the other end to a cord 30, which winds on a spindle 31 by an adjusting device. This spindle is journaled in a bearing 41 and has at one end a milled head 32 by which it may be readily turned. The bearing 31 is mounted on a rod 33, which is journaled in the support 2, and is held in position by a screw 34, which screws down on the said. bar 33. Binding posts 35, 36, 37 and 38 are provided, and thewiring is arranged in the usual manner, the main line circuit being connected by the binding posts 37 and 38 and the local circuit by the binding posts 35 and 36. The main current will then energize the electro-magnet which will draw the armature 28 in the usual way and will bring the contact point 27 into contact with the front contact point 22, and will thus complete the local circuit, in which there is a suitable battery and sounder, and the current will pass through the relay from the binding post 35 by the wire 39 to the contact arm 25 to the contact point 27 to the contact point 22, the frame 4, the wire 40 and the binding post 36.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A relay, having a cylindrical armor for the electro-magnet, said armor and the core of the electro-magnet having slots, and nonconductors separating the core from its armor.

2. A relay, having an armor for the electromagnet, the said ar'mor not being in electrical contact with the core of the electro-magnet, radial slots in the said armor some? and core respectively, and a non-conducting support for the said core.

3. A relay, having an armor for the electro-magnet, the said armor not being in electrical contact with the core of the electromagnet, slots in the said armor and core respectively, a non-conducting support for the said core, a standard having a bearing in which the non-conducting support is mounted, said non-conducting support being adjustable in the said bearing, and means to secure the support in predetermined positions. I

4. A relay, having an electro-magnet, an armor therefor, the said armor and the core of the electro-magnet not being in electrical contact, longitudinal slots in the said armor and electro-magnet, a contact arm, an armature and a contact point mounted on the said contact arm, back and front stop contact points, and main and local circuits as specified.

5. In a relay, an electromagnet, the core of the electromagnet being solid and having a longitudinal groove therein which extends approximately to the center of the core, a cylindrical armor for the electromagnet which has a longitudinal slot therein, and

non-conductors separating the core from its armor.

6. A relay having a cylindrical armor for the electromagnet, the said armor and the core of the electromagnet having slots therein, non-conductors separating the core from its armor, and a head for the cylindrical armor which is in close proximity to the core of the electromagnet.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES SCOTLAND.

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